but joe biden is joe biden and president obama is president obama. two different types of personalities. two different approaches, two different rhetorical styles. let's see if the base is as happy with president obama on wednesday morning as they were with joe biden yesterday morning. >> yeah. mike, can you tell us a little more about this new obama campaign tv ad? >> well, i think this is a case of going back to the formula that had helped build that lead in the polls prior to that first debate. you know, the so-called likability gap. the idea that mitt romney is out of touch with the average american. going back to this issue of his taxes not only has he not released his tax returns, as many presidential candidates have in the past, of course, but he's effectively paid a 14% rate on his taxes, and that is something that is a lower rate paid on investment income. let's have a listen to a little bit of that ad. >> you've paid 14% in federal taxes. that's the capital gains rate. is that fair to the guy who makes $50,000 and paid a higher rate than yo